Securing means



Patented Jan. 26, 1943 SECURING MEANS Edward J. Kari), Cicero, 111., assignor to G. S. Blakeslee & 00., Cicero, 111., a corporation of Illinois Original application April 25, 1941, Serial No. 390,229. Divided and this application July 27, 1942, Serial No. 452,456

5 Claims.

This invention relates to securing means for removably securing or mounting a member or attachment to or upon a member of a machine in cooperating relation to a part of the latter so as to be driven thereby.

' My invention is directed to securing means of such character that the member or attachment may be mounted on or secured to a member of a machine with expedition and facility so as to be in cooperating relation to and driven by a part of the machine. More specifically, I provide a collar or analogous element of one of the members with a locking pin disposed, when in looking position, to engage into a cooperating groove in a portion of the other member so as to secure the two members together and confine them against relative endwise movement or turning movement, tlii: lo ng pin, when in its releasing position, being clear of the groove and permitting ready separation ofthe two members. Further objects and advantages of my invention will appear fro the detail descriptiom portion of an attachment secured thereto being shown in elevation; Figure 3 is a sectional view taken substantially on line 3-3 of Figure 2; Figure 4 is a sectional view taken substantially on line 4-4 of Figure 2, certain parts being shown in plan; and

Figure 5 is a view similar to Figure 4 but showing the locking pin in its releasing position.

This application is a division of my application for Mixing machine, Serial No. 390,229, filed April 25, 1941.

The mixing machine with which the securing means of my instant invention is particularly intended to be used is disclosed in detail in my above identified copending application, and a gear housing 36, is mounted in overhang 23, conveniently by bolting to diaphragm plate 29 a flange 35 at the lower end of gear housing 34; The lower gear housing 33 is supported from upper gear housing 34 for rotation about an axis eccentric thereto and is provided, at its lower end, with an eccentrically disposed collar I54 to the lower end of which is secured a cap I56. Suitable means is provided for driving transmission unit 33, and a driven shaft 38, extending downward through collar I54 and cap I56, is rotated about its own'axis and revolves with gear case 36 about theaxis of rotation of the latter, during operation of the transmission unit. Overhang 23 is provided with a bottom closure plate 22 I, s'uitably secured in positionand provided with an opening 223 of suitable diameter to accommodate travel of collar I54 with lower gear housing 36. A splash plate 224, of somewhat greater diameter than opening 223, is disposed below and adjacent plate 22I and is clamped between collar I54 and cap I56. A mixing bowl support s of suitable size and shape is slidably mounted on two guide rods, one of which is shown and designated by reference number 90, extending between base 20 and overhang 23, and suitable means is provided for effecting vertical adjustment of support 8. The support s is provided with suitable means ior mounting thereon a mixing bowl H6 in underlying relation to shaft 38 and properly disposed to receive an attachment mounted on that shaft.

' Shaft 38 is intended for reception of various attachments, as previously stated. In Figure 1, I have shown a beater 205 extending downward into mixing bowl I I6, this'beater having an upwardly extending tubular shank 206, as appears more clearly from Figure 2. Shank 206 is provided, at its upper end, with a shoulder 201 from which extends a reduced stud 2il8,-provided at opposite sides thereof with transverse grooves 209 of arcuate cross section. Stud 208 fits snugly into the lower end portion of an attaching'collar 2I0 keyed on shaft 38 and secured thereto by a set screw 2| I. A cylindrical locking pin 2| 2 is mounted in collar 2 I 0 for turning movement, and is confined against endwise movement therethrough by a collar 2 I 3 secured on one end of this pin and an operating handle 2 secured on the other end thereof. Pin 2I2 is cut out from one side at itsmid portion to provide an arcuate recess 2I5 conforming in curvature to the stud 208. Shoulder 201 and stud 208 of shank 20B are provided, at opposite sides th'ereof, with slots 2 I6 for reception of two lugs 2I I extending downward from collar 210, at opposite sides thereof, When lugs 21'! are disposed in slots 215, one of the grooves 2119 of stud 288 is disposed adjacent and parallel with locking pin 212. In order that stud 208 may be inserted into the lower end portion of collar 210, pin 212 is turned into position such that recess 215 is disposed inward so as to offer no obstruction to insertion of stud 208, as shown in Figure 5. After the beater 205 or other attachment has been properly positioned with.

respect to collar 210, pin 212 is turned into the position shown in Figure 4,,in which the unrecessed inner portion of the pin intersects the bore at the lower end of sleeve 210 and engages into one of the grooves 209. In that manner the attachment is locked in collar. 2 10 and securedthereto for rotation therewith and with shaft 38.

I have shown the securing means of my invention as used for securing an attachment directly to" a rotating shaft for rotation therewith, byway of example; for which purpose it is particularly well suited. It will be understood, however, that my invention, in its broaderaspects, may be used for-various purposes and comprehends a collaror analogous member and a second member to be mounted in cooperating relation to the first member and apart of the machine, one of the members having a groove therein and the other member having a locking pin turnable into position engaging into the groove for securing the twov members together. It will be noted from Figures 41 and 51 that the'groove- 209-forreceiving the locking pin 2.12 isstraightlengthwise, so that pin 212 would prevent turning-of stud 208 in" collar 210 if the lugs 21! were omitted. In certain cases the locking pin 212 may be. relied upon for hold-- ing against turning movement the part with which it engages, and the lugs 21'! or" equivalent means may be omitted. The variations above referred to are disclosed in my copending applicationlSerial'No'. 390,229and are-intendedto be included in the instant application, but are not illustrated and described here in detail since that is not thought essential to an understanding of my instantinvention,

As above indicated, changes in construction and arrangement of parts of my invention may be resorted to without departing from the field and scope thereof, and I intend to include all such variations, as fall within the scope of the appended claims, in this application in which the preferred form only of my invention has been disclosed.

I claim:

1. In a machine of the character described, a driven shaft,- a tubular member infixed relation to said shaft, an attachment having a cylindrical extension fitting intosaidimember and provided with a transverse groove in its circumferential 50 while being free for turning movement into a tive relation to said shaft to be driven thereby, said means comprising a tubular member having a cylindrical bore for reception of the cylindrical extension of the attachment, and a cylindrical pin mounted in said tubular member transversely of the axis thereof cut out at one side conformably to the curvature of said bore, said pin being confined against movement radially of said shaft and against lengthwise movement while being free for turning movement into a releasing position with said out out side presented to said bore and a lockingposition with its other side portion intersectingzsaid'bore.

3. In a machine of the character described, a driven shaft, and means for mounting an attachment having a cylindrical extension in cooperative relation to said shaft to be driven thereby, said means comprising a collar secured on said shaft defining at its lower portion a cylindrical bore for reception of they cylindrical extension of they attachment, and a cylindricalpinmounted in said lower portion of said. collar transversely thereof cut out at one side conformably to the curvature of said bore, said pin being confined against movement radially of said shaft and against lengthwise movement while being free for turning movement into a releasing positionwithsaid cut out side presented to said bore and a locking position with its other side portion intersecting said bore.

4. In a machine of the character, desoribed a,

driven. shaft having at one end v a collar fixedthereto defining a cylindricalsocket, an attach:- ment having-a stud fitting into said socketand provided at one side with a transverse groove of: arcuatecross section, a locking pin mountedin said collar cut out at one sideconformably to the curvature of said stud, said pin being confined against movement radially of said shaft and against lengthwise movement while being freeifor turning movement into a locking,- position with its other side portion engaging in saidgroove and a releasing position with said out outside presented to said stud, and cooperating lugand'slot means carried by said collar and said attachment providing a positive driving connection there'between for transmitting the torque of said shaft to said attachment.

5. In a machine of the character described, a driven shaft having at one end a collar fixed thereto defining a cylindrical socket, an attachment having a reduced stud fitting into said socket and a shoulder seating against said collar with said out out side presented to said extension. 1

V forming a closure therewith and providing'a stop limiting relative axial movement between said collar and said attachment, said stud being. provided at one side with a transverse groove of arcuate cross section, a locking pin mounted in said collar cut out at one side conformably to the curvature of said stud, said pin being-confined against movement radially of said shaft and against lengthwise movement while beingfree for turning movement into a locking position with its other side engaging in said groove and a releasing position with said out out side presented to said stud, and cooperating lug and slot means carried by said collar and said shoulder providing a positive driving connection therebetween for transmitting the torque of said shaft to said attachment.

EDWARD J KARP.

CERTIFICATE OF CORRECTION. Patent No. 2,509,2t9. January 26, 1915.

of the above numbered patent requiring correction as follows: Page 2, first column, lines 71 and 72, claim 2, strike out the words "locking position with its other side portion engaging in said groove and a releasing peei- (Seal) Henry Van Arsdale,

' Acting Commissioner of Patents. 

